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The Ultimate Linux Shell Scripting Guide

You're reading from   The Ultimate Linux Shell Scripting Guide Automate, Optimize, and Empower tasks with Linux Shell Scripting

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Product type Paperback
Published in Oct 2024
Publisher Packt
ISBN-13 9781835463574
Length 696 pages
Edition 1st Edition
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Author (1):
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Donald A. Tevault Donald A. Tevault
Author Profile Icon Donald A. Tevault
Donald A. Tevault
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Table of Contents (26) Chapters Close

Preface 1. Getting Started with the Shell FREE CHAPTER 2. Interpreting Commands 3. Understanding Variables and Pipelines 4. Understanding Input/Output Redirection 5. Customizing the Environment 6. Text-Stream Filters – Part 1 7. Text Stream Filters – Part 2 8. Basic Shell Script Construction 9. Filtering Text with grep, sed, and Regular Expressions 10. Understanding Functions 11. Performing Mathematical Operations 12. Automating Scripts with here Documents and expect 13. Scripting with ImageMagick 14. Using awk – Part 1 15. Using awk – Part 2 16. Creating User Interfaces with yad, dialog, and xdialog 17. Using Shell Script Options with getops 18. Shell Scripting for Security Professionals 19. Shell Script Portability 20. Shell Script Security 21. Debugging Shell Scripts 22. Introduction to Z Shell Scripting 23. Using PowerShell on Linux 24. Other Books You May Enjoy
25. Index

Using Shell Script Options with getops

Often, an administrator will need to pass both arguments and options to a shell script. That’s easily done by passing positional parameters to the script, as we’ve seen in previous chapters. But, if you need to use normal Linux/Unix-style option switches, and you need to use arguments for certain options, then you’ll need a helper program. In this chapter, I’ll show you how to use getops to pass options, arguments, and options with arguments to a script.

Topics in this chapter include:

  • Understanding the need for getopts
  • Understanding getopt versus getopts
  • Using getopts
  • Looking at real-world examples

So, if you’re ready, let’s dig in.

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